Редактирование: Модуль:ТранспортнаяСхема

local p = {}

-- Извлечение аргументов
local function getArgs(frame)
    local args = {}
    if frame.getParent then
        local parent = frame:getParent()
        if parent and parent.args then
            for k, v in pairs(parent.args) do args[k] = v end
        end
    end
    if frame.args then
        for k, v in pairs(frame.args) do args[k] = v end
    end
    return args
end

-- Безопасная очистка текста JSON
local function cleanJsonText(rawText)
    rawText = mw.ustring.gsub(rawText, '<noinclude>.-</noinclude>', '')
    rawText = string.gsub(rawText, '<!%-%-.-%-%->', '')
    rawText = string.gsub(rawText, '\194\160', ' ')
    rawText = string.gsub(rawText, '\194\173', '')
    return mw.text.trim(rawText)
end

-- Загрузка данных из data.json
local function loadData(args)
    local dataParam = args['данные'] or args[1] or 'Муроморского'
    dataParam = mw.text.trim(dataParam)
    
    local cleanName = mw.ustring.gsub(dataParam, '^[Шш][Аа][Бб][Лл][Оо][Нн]:', '')
    cleanName = mw.ustring.gsub(cleanName, '^[Tt][Ee][Mm][Pp][Ll][Aa][Tt][Ee]:', '')
    cleanName = mw.ustring.gsub(cleanName, '/data%.json$', '')
    cleanName = mw.ustring.gsub(cleanName, '%.json$', '')
    cleanName = mw.ustring.gsub(cleanName, '^[Ии]нтерактивная схема%s*', '')
    cleanName = mw.text.trim(cleanName)
    
    local candidates = {}
    local function addCandidate(title)
        if title and title ~= '' then
            for _, existing in ipairs(candidates) do
                if existing == title then return end
            end
            table.insert(candidates, title)
        end
    end
    
    addCandidate(dataParam)
    addCandidate('Шаблон:Интерактивная схема ' .. cleanName .. '/data.json')
    addCandidate('Шаблон:Интерактивная схема ' .. cleanName .. ' метрополитена/data.json')
    addCandidate('Шаблон:' .. cleanName .. '/data.json')
    addCandidate('Шаблон:' .. cleanName)
    addCandidate('Интерактивная схема ' .. cleanName .. '/data.json')
    addCandidate('Интерактивная схема ' .. cleanName .. ' метрополитена/data.json')
    addCandidate(cleanName .. '/data.json')
    addCandidate(cleanName)

    local jsonErrors = {}
    
    for _, pageTitle in ipairs(candidates) do
        local ok, data = pcall(mw.loadJsonData, pageTitle)
        if ok and type(data) == 'table' then
            return data
        end
        
        local titleObj = mw.title.new(pageTitle)
        if titleObj then
            local rawText = titleObj:getContent()
            if rawText and rawText ~= '' then
                rawText = cleanJsonText(rawText)
                local decOk, decoded = pcall(mw.text.jsonDecode, rawText)
                if decOk and type(decoded) == 'table' then
                    return decoded
                else
                    table.insert(jsonErrors, '[[' .. pageTitle .. ']] (' .. tostring(decoded) .. ')')
                end
            end
        end
    end
    
    if #jsonErrors > 0 then
        error('Ошибка в синтаксисе JSON:\n* ' .. table.concat(jsonErrors, '\n* '))
    end
    
    error('Страница данных не найдена ни по одному из путей:\n* [[' .. table.concat(candidates, ']]\n* [[') .. ']]')
end

-- Парсер координат "X Y"
local function parseCoords(str)
    if not str then return nil, nil end
    local x, y = mw.ustring.match(str, '(%d+%.?%d*)%s+(%d+%.?%d*)')
    return tonumber(x), tonumber(y)
end

-- Генерация интерактивной Canvas-схемы с панорамированием и управлением
function p.canvas(frame)
    local args = getArgs(frame)
    local data = loadData(args)
    
    local origW = tonumber(args['ширина_оригинала'] or 850) or 850
    local origH = tonumber(args['высота_оригинала'] or 620) or 620
    
    -- Кадрирование
    local cropX, cropY, cropW, cropH = nil, nil, nil, nil
    if args['кадрирование'] or args['crop'] then
        local c1, c2, c3, c4 = mw.ustring.match(args['кадрирование'] or args['crop'], '(%d+%.?%d*)%s+(%d+%.?%d*)%s+(%d+%.?%d*)%s+(%d+%.?%d*)')
        cropX, cropY, cropW, cropH = tonumber(c1), tonumber(c2), tonumber(c3), tonumber(c4)
    elseif args['фокус'] or args['focus'] then
        local fx, fy = parseCoords(args['фокус'] or args['focus'])
        local fw = tonumber(args['ширина_фокуса'] or 320) or 320
        local fh = tonumber(args['высота_фокуса'] or 240) or 240
        if fx and fy then
            cropX = math.max(0, fx - fw / 2)
            cropY = math.max(0, fy - fh / 2)
            cropW = fw
            cropH = fh
        end
    end
    
    local targetW = cropW or origW
    local targetH = cropH or origH
    
    local boxW = tonumber(args['ширина_блока'] or args['ширина_карточки'] or args['ширина'])
    local scale = tonumber(args['масштаб'] or args['scale'])
    
    local isScrollMode = (args['прокрутка'] == 'да' or args['скролл'] == 'да' or args['scroll'] == 'yes')
    
    if not isScrollMode and boxW and not scale then
        scale = boxW / targetW
    elseif not scale then
        scale = 1.0
    end
    
    local finalBoxW = boxW or (targetW * scale)
    local finalBoxH = tonumber(args['высота_блока'] or args['высота_карточки'] or args['высота']) or (targetH * scale)
    
    -- Внешний контейнер-вьюпорт с поддержкой перемещения клавиатурой и скролла
    local wrapper = mw.html.create('div')
        :addClass('ts-transport-map-viewport')
        :attr('tabindex', '0')
        :attr('title', 'Кликните для управления стрелками клавиатуры (← ↑ → ↓) или скролла мышью')
        :css({
            ['position'] = 'relative',
            ['width'] = string.format('%.1fpx', finalBoxW),
            ['height'] = string.format('%.1fpx', finalBoxH),
            ['max-width'] = '100%',
            ['overflow'] = isScrollMode and 'auto' or 'hidden',
            ['scroll-behavior'] = 'smooth',
            ['overscroll-behavior'] = 'contain',
            ['-webkit-overflow-scrolling'] = 'touch',
            ['border-radius'] = '10px',
            ['border'] = args['без_рамки'] and 'none' or '1px solid #d0d7de',
            ['margin'] = (args['прижатие'] == 'лево' and '0 auto 0 0') or (args['прижатие'] == 'право' and '0 0 0 auto') or '0 auto',
            ['background-color'] = '#ffffff',
            ['background-image'] = 'radial-gradient(#e1e4e8 1px, transparent 1px)',
            ['background-size'] = '20px 20px',
            ['box-shadow'] = args['без_тени'] and 'none' or '0 2px 8px rgba(0,0,0,0.06)',
            ['outline'] = 'none',
            ['user-select'] = 'none'
        })
        
    local shiftX = cropX or 0
    local shiftY = cropY or 0
    
    -- Внутренний холст схемы
    local canvas = wrapper:tag('div')
        :addClass('ts-html-transport-canvas')
        :css({
            ['position'] = isScrollMode and 'relative' or 'absolute',
            ['left'] = not isScrollMode and string.format('%.1fpx', -shiftX * scale) or '0',
            ['top'] = not isScrollMode and string.format('%.1fpx', -shiftY * scale) or '0',
            ['width'] = origW .. 'px',
            ['height'] = origH .. 'px',
            ['transform'] = (scale ~= 1.0 and not isScrollMode) and string.format('scale(%.4f)', scale) or 'none',
            ['transform-origin'] = '0 0',
            ['font-family'] = "-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif"
        })

    -- Шапка/логотип
    if not (args['шапка'] == 'нет' or cropX ~= nil) then
        local header = canvas:tag('div')
            :css({
                ['position'] = 'absolute',
                ['top'] = '16px',
                ['left'] = '18px',
                ['display'] = 'flex',
                ['align-items'] = 'center',
                ['gap'] = '10px',
                ['z-index'] = '5',
                ['background'] = 'rgba(255,255,255,0.92)',
                ['padding'] = '6px 12px',
                ['border-radius'] = '8px',
                ['border'] = '1px solid #e1e4e8',
                ['box-shadow'] = '0 2px 6px rgba(0,0,0,0.04)'
            })
        header:tag('div')
            :css({
                ['width'] = '24px',
                ['height'] = '24px',
                ['background'] = '#ED1B24',
                ['color'] = '#fff',
                ['font-weight'] = 'bold',
                ['font-size'] = '13px',
                ['display'] = 'flex',
                ['align-items'] = 'center',
                ['justify-content'] = 'center',
                ['border-radius'] = '50%'
            }):wikitext('M')
        header:tag('div')
            :css({['text-align'] = 'left'})
            :tag('div'):css({['font-weight'] = 'bold', ['font-size'] = '13px', ['color'] = '#1f2328'}):wikitext(data.title or 'Скоростной транспорт'):done()
            :tag('div'):css({['font-size'] = '10px', ['color'] = '#57606a', ['text-transform'] = 'uppercase', ['letter-spacing'] = '0.5px'}):wikitext('Интерактивная схема линий'):done()
    end

    -- Индикатор подсказки управления
    if isScrollMode then
        wrapper:tag('div')
            :css({
                ['position'] = 'sticky',
                ['top'] = '10px',
                ['left'] = 'calc(100% - 130px)',
                ['width'] = '115px',
                ['z-index'] = '10',
                ['background'] = 'rgba(255,255,255,0.88)',
                ['border'] = '1px solid #d0d7de',
                ['border-radius'] = '16px',
                ['padding'] = '3px 8px',
                ['font-size'] = '10px',
                ['color'] = '#57606a',
                ['display'] = 'flex',
                ['align-items'] = 'center',
                ['gap'] = '4px',
                ['pointer-events'] = 'none',
                ['box-shadow'] = '0 1px 4px rgba(0,0,0,0.05)',
                ['backdrop-filter'] = 'blur(2px)'
            })
            :wikitext('⌨ ⇄ ⇅ Скролл')
    end

    if data.lines then
        -- 1. Слой путей
        for _, line in ipairs(data.lines) do
            local color = line.color or '#888888'
            local stations = line.stations or {}
            
            for i = 1, #stations - 1 do
                local st1, st2 = stations[i], stations[i+1]
                local x1, y1 = parseCoords(st1.coords)
                local x2, y2 = parseCoords(st2.coords)
                
                if x1 and y1 and x2 and y2 then
                    local dx = x2 - x1
                    local dy = y2 - y1
                    local length = math.sqrt(dx * dx + dy * dy)
                    local angle = math.deg(math.atan2(dy, dx))
                    local isFuture = (st1.future and st2.future)
                    
                    canvas:tag('div')
                        :css({
                            ['position'] = 'absolute',
                            ['left'] = x1 .. 'px',
                            ['top'] = (y1 - 3) .. 'px',
                            ['width'] = length .. 'px',
                            ['height'] = isFuture and '0px' or '6px',
                            ['background-color'] = isFuture and 'transparent' or color,
                            ['border-top'] = isFuture and ('5px dashed ' .. color) or 'none',
                            ['transform-origin'] = '0 50%',
                            ['transform'] = 'rotate(' .. angle .. 'deg)',
                            ['border-radius'] = '3px',
                            ['z-index'] = '1',
                            ['pointer-events'] = 'none'
                        })
                end
            end
        end

        -- 2. Слой станций и подписей
        for _, line in ipairs(data.lines) do
            local color = line.color or '#888888'
            
            for _, st in ipairs(line.stations or {}) do
                local x, y = parseCoords(st.coords)
                if x and y then
                    local name = st.name or st.article or ''
                    local article = st.article or name
                    local isFuture = (st.future == true)
                    
                    local node = canvas:tag('div')
                        :css({
                            ['position'] = 'absolute',
                            ['left'] = (x - 7) .. 'px',
                            ['top'] = (y - 7) .. 'px',
                            ['width'] = '14px',
                            ['height'] = '14px',
                            ['border-radius'] = '50%',
                            ['background-color'] = '#ffffff',
                            ['border'] = isFuture and ('2.5px dashed ' .. color) or ('3px solid ' .. color),
                            ['box-sizing'] = 'border-box',
                            ['box-shadow'] = '0 1px 3px rgba(0,0,0,0.25)',
                            ['z-index'] = '3',
                            ['cursor'] = 'pointer'
                        })
                    node:wikitext('[[' .. article .. '|<span style="display:block;width:100%;height:100%;" title="' .. name .. '"></span>]]')
                    
                    local isRightSide = (x >= (origW / 2))
                    local label = canvas:tag('div')
                        :css({
                            ['position'] = 'absolute',
                            ['left'] = isRightSide and ((x + 11) .. 'px') or ((x - 11) .. 'px'),
                            ['top'] = y .. 'px',
                            ['transform'] = isRightSide and 'translateY(-50%)' or 'translate(-100%, -50%)',
                            ['text-align'] = isRightSide and 'left' or 'right',
                            ['white-space'] = 'nowrap',
                            ['font-size'] = '11.5px',
                            ['font-weight'] = '500',
                            ['z-index'] = '4',
                            ['text-shadow'] = '0 0 3px #ffffff, 0 0 3px #ffffff, 0 0 3px #ffffff, 0 0 4px #ffffff'
                        })
                    
                    local labelStyle = isFuture and 'color: #6e7781; font-style: italic; text-decoration: none;' or 'color: #1f2328; text-decoration: none;'
                    label:wikitext('[[' .. article .. '|<span style="' .. labelStyle .. '">' .. name .. '</span>]]')
                end
            end
        end
    end

    return tostring(wrapper)
end

return p